US8016200B2 - Handle and activation assembly for portable electronic device - Google Patents
Handle and activation assembly for portable electronic device Download PDFInfo
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- US8016200B2 US8016200B2 US12/550,933 US55093309A US8016200B2 US 8016200 B2 US8016200 B2 US 8016200B2 US 55093309 A US55093309 A US 55093309A US 8016200 B2 US8016200 B2 US 8016200B2
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- assembly
- light
- optical
- electronic device
- mobile electronic
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10881—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices constructional details of hand-held scanners
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
Definitions
- Embodiments of the subject matter described herein relate generally to portable electronic devices and associated handle attachments. More particularly, embodiments of the subject matter relate to a triggering mechanism for such a combined portable device and handle attachment.
- Portable electronic devices such as mobile computing units, can be used to perform various operations that require movement between locations. For example, where merchandise or cargo—or other aggregations of transportable goods—are distributed throughout an area, whether in a retail environment or a warehouse, it can be useful to use a portable electronic device to record or discover the location of the goods. Thus, an operator can move among the goods and operate the portable electronic device to perform such operations.
- a portable electronic device can be capable of discovering information regarding objects, including recording their location. Such information collection and recordation can be accomplished by a variety of operations.
- a mobile RFID reader can perform RFID interrogation and record RFID response signals.
- a bar code scanner can be used to record a bar code for each object, such as during inventory operations.
- a device or component can be coupled to the portable electronic device for easier use.
- a handle with a trigger can be coupled to a mobile computing device.
- the trigger can operate the mobile computing device to perform certain, such as RFID interrogation or bar code scanning, among others.
- Handles commonly used in such applications typically have one or more features selected for use in an active environment.
- the combined handle and mobile computing device is typically robust enough to survive a fall after an accidental drop by a user.
- One such feature is a magnetic switch activated by the trigger of the handle.
- a magnet in the handle may be moved near the mobile computing device, which can have an activating device. When the magnet is sufficiently close to the activating device for its magnetic field to act in sufficient strength on the activating device, the activating device can be triggered.
- the magnetic switch however, has certain disadvantages such as a lack of tactile feedback to the user in response to triggering.
- magnetic triggers are susceptible to various disadvantages inherent to producing a binary effect—the triggering or not triggering of the device by the user—with an analog device.
- the magnetic strength of the magnet can vary between different magnetic switches, causing either false “fires” when a trigger is not activated, but the magnet approaches sufficiently close to the activating device for it to activate.
- a weak magnet might be moved by mechanical manipulation of the operator into the correct position in proximity to the activating device, but the weaker field of the magnet may be insufficient to cause the activating device to activate.
- Magnetic switches are sometimes used because they do not require a physical connection between the handle and mobile computing device beyond a mechanical coupling.
- Those handles and triggering assemblies which have such physical connections, such as electrical connections, can be susceptible to fluids, such as water, or dust particles or other contaminants entering the connecting apparatuses, or remaining thereon, or otherwise impairing the connection.
- a scanning assembly comprises a mobile electronic device comprising an optical sensor, the mobile electronic device adapted to perform a scanning operation, and a trigger assembly.
- the trigger assembly comprises a handle member adapted to be releasably coupled to the mobile electronic device, the handle member comprising a light source, and a switch assembly adapted to receive input from an operator of the trigger assembly, wherein the light source is adapted to emit a light signal in response to manipulation of the switch assembly, and wherein the mobile electronic device is adapted to perform the scanning operation in response to receiving the light signal with the optical sensor.
- a mobile electronic assembly comprises a mobile electronic device having an optical sensor, and a triggering assembly adapted to be releasably coupled to the mobile electronic device.
- the triggering assembly comprises a triggering device adapted to be manipulated by a user of the mobile electronic assembly, the triggering device comprising a finger trigger, and an optical emitter adapted to transmit an optical signal in response to manipulation of the triggering device by the user, the optical emitter oriented to direct the optical signal toward the optical sensor.
- the scanning assembly comprises a portable electronic device comprising an optical scanner and an optical sensor, and a handle assembly adapted to be releasably coupled to the portable electronic device.
- the handle assembly comprises a trigger assembly adapted to be manipulated by a user of the scanning assembly, and a light source adapted to emit light in response to manipulation by the user, wherein the handle assembly is adapted to be releasably coupled to the portable electronic device such that the light source is directed to emit light toward the optical sensor, and the portable electronic device is adapted to operate the optical scanner in response to detecting light from the light source.
- FIG. 1 is an exploded perspective view of an embodiment of a portable electronic device and handle assembly
- FIG. 2 is a side view of the assembled embodiment of FIG. 1 ;
- FIG. 3 is a side view of another embodiment of a handle assembly.
- FIG. 4 is a detailed perspective view of a portion of the handle assembly embodiment of FIG. 3 .
- Coupled means that one element/node/feature is directly or indirectly joined to (or directly or indirectly communicates with) another element/node/feature, and not necessarily mechanically.
- FIG. 1 depicts one exemplary arrangement of elements, additional intervening elements, devices, features, or components may be present in an embodiment of the depicted subject matter.
- Adjust Some elements, components, and/or features are described as being adjustable or adjusted. As used herein, unless expressly stated otherwise, “adjust” means to position, modify, alter, or dispose an element or component or portion thereof as suitable to the circumstance and embodiment. In certain cases, the element or component, or portion thereof, can remain in an unchanged position, state, and/or condition as a result of adjustment, if appropriate or desirable for the embodiment under the circumstances. In some cases, the element or component can be altered, changed, or modified to a new position, state, and/or condition as a result of adjustment, if appropriate or desired.
- inhibit is used to describe a reducing or minimizing effect. When a component or feature is described as inhibiting an action, motion, or condition it may completely prevent the result or outcome or future state completely. Additionally, “inhibit” can also refer to a reduction or lessening of the outcome, performance, and/or effect which might otherwise occur. Accordingly, when a component, element, or feature is referred to as inhibiting a result or state, it need not completely prevent or eliminate the result or state.
- FIG. 1 illustrates a disassembled embodiment of a scanning system 100 .
- the scanning system 100 can comprise a mobile computing device 110 , a handle assembly 130 , and a scan target 150 .
- the mobile computing device 110 can have at least one optical sensor 112 , as well as one or more front coupling sites 114 and one or more rear coupling sites 116 .
- the handle assembly 130 can comprise an optical emitter 132 , as well as one or more front coupling hooks 140 and at least one rear coupling latch 142 .
- a actuator 134 can also be coupled to the optical emitter 132 , as described in greater detail below.
- the scan target 150 can have a scan area 152 . A user can manipulate the actuator 134 to cause the optical emitter 132 to emit a signal.
- the signal can be detected by the optical sensor 112 , which can, in turn, cause the mobile computing device 110 to emit a scan signal 128 .
- the scan signal 128 can impinge on the scan area 152 to perform a scan operation for the mobile computing device 110 .
- the mobile computing device 110 can be a portable computing device, such as a RFID reader, personal digital assistant, or other similar device. Other embodiments can use other portable electronic devices, however, including those which do not have independent computing or processing capabilities. As described herein, the mobile computing device 110 is a portable computing unit capable of scanning bar codes. Other electronic devices capable or performing operations in response to an optical signal from a handle assembly coupled to the electronic device can be used, without limit. Some examples include a personal digital assistant, a portable RFID reader, or other mobile computing device, among others.
- the mobile computing device 110 can comprise an optical sensor 112 , front and rear coupling sites, 114 , 116 , a processing unit 120 , and a scanning module 126 .
- the mobile computing device 110 can have other components and systems, such as input and output devices, such as a keypad, display, wireless antenna, as well as other computing components such as memory devices, data storage devices, and so on.
- the mobile computing device 110 is described as performing certain operations and/or having certain features. Nonetheless, other features and operations can be present or performed by an electronic device without deviating from the scope of the improvements described herein.
- the mobile computing device 110 can have front and rear coupling sites 114 , 116 , which can be embodied as grooves or recesses adapted to releasably couple with the handle assembly 130 .
- the front coupling sites 114 are two front-facing recesses adapted to receive the front coupling hooks 140 .
- the rear coupling site 116 is a recess, which can optionally have a notch or flange, which is adapted to receive the rear coupling latch 142 .
- the front and rear coupling sites 114 , 116 can vary greatly between embodiments. In certain embodiments where the handle assembly 130 can be releasably coupled to the mobile computing device 110 without the need for them, the coupling sites can be omitted altogether.
- coupling site can vary between embodiments, so long as the mobile computing device 110 and handle assembly 130 can be releasably coupled to each other.
- Such releasable coupling can be accomplished through any appropriate technique, such as interference fitting, locking or latching mechanisms or devices, retention flanges, and so on.
- the mobile computing device 110 preferably includes an optical sensor 112 .
- the optical sensor 112 can be coupled to the processing unit 120 .
- the optical sensor 112 can be positioned within a recess 113 of the mobile computing device 110 , or flush with a surface of it.
- the optical sensor 112 can receive power from a power device of the mobile computing device 110 , such as a rechargeable power unit.
- the optical sensor 112 can be operated by the processing unit 120 .
- the optical sensor 112 is preferably adapted to detect optical signals.
- the optical sensor 112 can be adapted to detect visible light, infrared light, ultraviolet light, and so on.
- the optical sensor 112 can have additional functionality, such as operating as a camera.
- the type of optical sensor can vary between embodiments.
- the optical sensor 112 can provide a signal to the processing unit 120 in response to detecting an optical signal, such as a flash of light.
- the optical sensor 112 can provide a signal in response to detection of any appropriate optical signal.
- the optical sensor 112 can have additional functional capability to transmit a signal to the processing unit 120 only when a particular pattern or sequence of optical signals is detected, as described in greater detail below.
- the processing unit 120 can be coupled to the optical sensor 112 as well as the scanning module 126 . While the processing unit 120 is preferably adapted and configured to receive a signal from the optical sensor 112 and operate the scanning module 126 in response, the type of processing unit 120 can vary between embodiments. Thus, no particular processor is preferred for an embodiment except that it performs the described features. Accordingly, the processing unit 120 can be a single device or component, or can include additional components as an integrated device. In certain embodiments, the processing unit 120 can be adapted and/or configured to detect a particular pattern of signals, including the wavelength of light, as well as a sequence and/or frequency of optical signals, as desired for the embodiment.
- the scanning module 126 is described a bar code scanning device.
- the scanning module 126 could be a camera, an RFID antenna or transceiver, an optical scanner, such as a laser device, and so on.
- the scanning module 126 can perform non-scanning features, such as projecting an image as well or instead of scanning.
- the scanning module 126 can preferably be operated by the processing unit 120 , and can both receive commands from the processing unit 120 , as well as provide information obtained from scanning to it.
- the processing unit 120 is shown emitting a scan signal 128 .
- the scan signal 128 can be a laser beam, whether single or multiple, stationary or scanning, an infrared beam, or other signal type appropriate to the embodiment.
- the scan target 150 is illustrated as having a scan area 152 for descriptive purposes with a bar code scanner, the scan target 150 can be different objects in different embodiments, such as an RFID tag, as appropriate to the embodiment.
- the handle member or handle assembly 130 preferably has a grip portion 131 and an actuator 134 .
- the handle assembly 130 can include an optical emitter 132 , an actuator 134 , an extension portion 135 , a switch 136 , and a power source 138 , among other components.
- the handle assembly 130 can also be referred to as a trigger assembly because of its function of providing triggering signals to the mobile computing device.
- the actuator 134 , extension portion 135 (when present), and switch 136 can be referred to as a trigger assembly. This is because the triggering operation can be used to describe the activation of the optical emitter 132 as well as activation of the mobile computing device 110 in response to the optical signal 133 .
- the actuator 134 can be embodied as a physical trigger.
- the grip portion 131 is preferably comfortable for the user of the scanning system 100 to hold when operating it.
- the grip portion 131 can have grooves and other surface features to aid grasping it.
- the actuator 134 is preferably situated to be manipulated by the user while holding the handle assembly.
- the actuator 134 is positioned to be squeezed by the index finger of the user.
- it can be a button or post which can be manipulated by the user while comfortably grasping the handle assembly 130 .
- manipulation is used to describe the activation of the actuator 134 , in other embodiments, it can be include pulling, squeezing, rubbing, or otherwise exerting a manual force to activate the appropriate device.
- the actuator 134 can have an extension portion if necessary to operate the switch 136 .
- the extension portion 135 provides for physical contact with the switch 136 .
- the extension portion 135 can be omitted.
- the extension portion 135 can have a different shape and/or relative size to accomplish the desired feature of assisting user in activating the switch 136 with the actuator 134 .
- the switch 136 can be, as mentioned, a dome switch. In other embodiments, it can be a literal switch, including various types of microswitches, a momentary switch, and so on. Preferably the switch 136 can provide power from the power source 138 to the optical emitter 132 when the actuator 134 is manipulated by the user.
- the switch 136 can cooperate with the extension portion 135 , as described above, in certain embodiments. In certain embodiments, the actuator 134 and switch 136 , with or without the extension portion 135 can be collectively considered as a switch assembly.
- the switch 136 can include types of switches which provide feedback, including tactile feedback, when activated. Thus, when activated by pressure from the actuator 134 , the switch 136 can click or trip in a way that is detectable to a user manipulating the actuator 134 , including manipulation via the extension portion 135 . In addition to tactile feedback, the switch 136 can provide audible feedback, such as a sound or signal that the switch 136 has been activated. Both types of feedback can be advantages over non-contact switches, such as magnetic switches.
- the moving parts of the handle assembly 130 are simple and directly connected, they can be housed, mounted, and coupled in a rugged housing. Accordingly, the handle assembly 130 can be adapted to survive normal usage events, including falls from a height of normal operation by a user.
- a magnetic switch by contrast, can experience difficulty operating after such events because the magnetic component relies upon relatively precise positioning and actuation for operations.
- Different mechanical and electrical triggering devices known in the art can require a physical connection to the electronic component being triggered.
- a physical connection could be an electrical connection, port, or mechanical interaction, and so on.
- Events that can occur during normal operations, such as accidental drops, can cause damage to the constituent components of physical connections, such as a port, plug, and the like.
- the front coupling hooks 140 and rear coupling latch 142 are coupling components to join the mobile computing device 110 and handle assembly 130 together, they are not required for triggering operations.
- the handle assembly 130 advantageously utilizes an optical signal for triggering operations without a required physical connection for triggering. Therefore, unlike triggering devices which require a physical connection, the handle assembly 130 can withstand events, including wear and tear, which could disable a mechanical and/or electrical triggering device.
- the power source 138 is preferably coupled to the grip portion 131 of the handle assembly 130 .
- the power source 138 can be disposed within the handle assembly 130 , such as in a compartment or held in place with interference members, fasteners, flanges, or through any other appropriate technique.
- the power source 138 can be removable from the handle assembly 130 .
- the power source 138 preferably can be removed when depleted, and replaced with one of a similar type to permit continued or renewed operation of the handle assembly 130 .
- a rechargeable power source 138 can be used.
- external contacts can be present on the surface of the handle assembly 130 . Such external contacts can be coupled to the power source 138 to provide a recharging connection.
- the power source 138 can supply any type of power appropriate for the embodiment.
- the power source 138 can supply electrical power of the appropriate voltage and amperage.
- the power source 138 can be a chemical battery, such as a lead-acid, nickel-hydride, lithium-ion, or other desired type.
- the power source 138 can alternatively be a fuel cell, capacitor, or any other type of device appropriate for supplying power in the particular embodiment.
- the power source 138 can have a connection in the handle assembly 130 which can be coupled to the mobile computing device 110 , or other electronic component, to receive power from the mobile computing device 110 .
- a connection can be of any appropriate type, including metal contacts, a plug, port, and so on.
- the connection can be a primary or secondary source of recharging power for the power source 138 . Accordingly, even in those embodiments of the handle assembly 130 which have such a connection, the power source 130 can receive power to recharge it from another source as well.
- the optical emitter 132 can be any type of emitter of electromagnetic radiation desired for the embodiment.
- the optical emitter 132 can emit any desired type of optical signal, including visible light, infrared light, ultraviolet light, and so on.
- the optical emitter 132 can be a light-emitting diode.
- the optical emitter 132 can be different emitting devices, such as an incandescent light source, a fluorescent light source, and so on.
- the physical structure of the optical emitter can vary between embodiments, so long as it performs the desired operations.
- the optical emitter 132 can be flush with a surface of the handle assembly 130 , or it can be positioned within a recess of the handle assembly 130 .
- the optical emitter 132 is positioned and adapted to transmit an optical signal 133 toward or in the direction of the optical sensor 112 when the handle assembly 130 is coupled to the mobile computing device 110 .
- the optical emitter 132 can be a simple device which emits an optical signal, such as optical signal 133 , when supplied power from the power source 138 by the switch 136 .
- the optical emitter 132 can perform more complex functions, such as emitting a pattern of optical signals in response to a signal from the switch 136 .
- the optical emitter 132 can be adapted to produce a pattern of optical signals including a repeated flash of light, a sequence of light flashes of varying frequency and/or duration, a succession of optical flashes of different wavelengths of the visible spectrum, as well as non-visible light.
- an optical emitter 132 can be adapted to transmit a short-duration flash of visible light, followed by a long-duration flash of infrared light, followed by another short-duration flash of visible light. Other permutations and combinations can be performed as well, as desired.
- the optical emitter 132 can optionally cooperate with one or more processing devices, if desired.
- the optical emitter 132 can have an integrated processing device or logic circuit for producing the desired pattern.
- the optical sensor 112 can be configured or adapted to provide a signal to the processing unit 120 only upon detection of the certain pattern, rather than simply any optical signal.
- the optical sensor 112 can cooperate with one or more processing devices, memory devices, and/or logic circuits to perform the necessary operations. Such components can be separate units or integrated with the optical sensor.
- the optical sensor 112 can function by providing a signal to the processing unit identifying that an optical signal was received including, in some embodiments, characteristics regarding the type of optical signal, such as the type of signal received (i.e. infrared light, visible light, etc.) and/or duration of the signal.
- detection of the appropriate pattern can be performed by the processing unit 120 in response to the information about received optical signals provided by the optical sensor 112 .
- each of the optical emitter 132 and optical sensor 112 can be configured to adjust the type of optical signal produced and detected, respectively.
- the optical emitter 132 can be disposed on a surface of the handle assembly 130 , or positioned within a recess.
- the optical emitter 132 can have one or more sealing members near, around, or over it, for purpose of inhibiting contaminants, such as dust, from impairing operation of the optical emitter 132 .
- Such a seal is preferably impermeable to fluids, such as air or water, as well as physical particles.
- FIG. 3 illustrates a side view of the handle assembly 230
- FIG. 4 illustrates a detailed perspective view of a portion of the handle assembly 230 including the optical emitter 232 and seal 290 .
- the components of FIGS. 3 and 4 are substantially similar to those of FIGS. 1 and 2 , except that the numerical indicators have been incremented by 100.
- the optical emitter 232 is positioned in a recess in the handle assembly 230 .
- the optical emitter 232 can, in certain embodiments, be positioned flush, or substantially flush, with a surface of the handle assembly 230 as well, without deviating from the features described.
- the seal 290 is preferably disposed across at least a portion of the optical emitter 232 . As shown, the seal 290 can be disposed entirely across the optical emitter 232 , sealing the recess.
- the seal 290 can be transparent, wherein optical signals from the optical emitter 232 can pass through the seal 290 substantially unimpeded. As one example, a transparent glass or plastic seal can be used to protect the optical emitter 232 while still permitting optical signals to pass through the seal 290 .
- the seal 290 can be opaque, wherein optical signals from the optical emitter 232 are inhibited from passing through the seal 290 .
- the seal 290 can be removed from the path of travel of optical signals between the optical emitter 232 and an optical sensor, so as to permit operation. Removal can be accomplished by the user prior to operating the combined scanning assembly.
- the seal 290 can be moveable.
- the seal 290 can occupy a first position, such as the illustrated position wherein the optical emitter 232 is behind the seal 290 .
- the seal 290 can be moveable to a second, withdrawn position, wherein the seal 290 is removed, and the optical emitter 232 is exposed.
- a switch or slide can be present on the handle assembly 230 to operate the position of the seal 290 .
- the seal 290 can be biased toward the closed, illustrated position by a resilient member, such as a spring.
- a mechanical function can withdraw the seal 290 during coupling of the handle assembly 230 to the mobile computing device 210 , such as the insertion of a protrusion (not shown) of the mobile computing device 210 into a recess (not shown) of the handle assembly 230 .
- the act of coupling the components can operatively move the seal 290 to the second, withdrawn, and open position, thereby exposing the optical emitter 232 .
- the seal 290 is substantially transparent to optical signals produced by the optical emitter 232 , such features can be omitted.
- a baffles can be present surrounding the optical emitter 132 .
- the baffles can, when the handle assembly 130 and mobile computing device 110 are coupled together, extend towards the optical sensor 112 .
- the baffles is adapted to inhibit stray light from entering the optical sensor 112 .
- a baffles can extend upwards from the handle assembly 130 .
- the baffles when the handle assembly 130 and mobile computing device 110 are coupled together, the baffles can extend into the recess in which the optical sensor 112 is positioned, preferably along the periphery of the optical sensor 112 .
- the baffles can enclose a space, such as a hollow cylindrical central portion, wherein the optical signal 133 produced the optical emitter 132 can travel to the optical sensor 112 without stray light interfering, reducing the occurrence of false positive detections by the optical sensor 112 .
- the user preferably couples the handle assembly 130 to the mobile computing device 110 .
- the coupling can be accomplished by interaction of the front and rear coupling sites 114 , 116 with the front coupling hooks 140 and rear coupling latch 142 .
- the user can then grasp the handle assembly 130 and direct the end of the mobile computing device 110 housing the scanning module 126 toward the scan target 150 .
- the user can manipulate the actuator 134 to activate the switch 136 .
- the switch 136 By activating the switch 136 , the user can supply power from the power source 138 to the optical emitter 132 .
- the optical emitter 132 can produce an optical signal 133 , which can be detected by the optical sensor 112 .
- the optical sensor 112 can detect the optical signal 133 and provide a signal to the processing unit 120 .
- the processing unit 120 can operate the scanning module 126 to produce a scan signal 128 in response to detecting the optical signal 133 .
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Abstract
Description
Claims (23)
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US12/550,933 US8016200B2 (en) | 2009-08-31 | 2009-08-31 | Handle and activation assembly for portable electronic device |
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US12/550,933 US8016200B2 (en) | 2009-08-31 | 2009-08-31 | Handle and activation assembly for portable electronic device |
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